Don't worry about your pre-req's they aren't that bad! I literally passed high school chemistry with a 60.1, I didn't understand it at all, but i passed it in college with a 97 and really understood it. I took all of my pre-req's at Butler and Cowley because it was cheaper than WSU and I had good teachers for all of my classes, but so does WSU - most of my friends did their req's here and they did well too.
The TEAS was ok, I did ok on my ACT's - I waited until my senior year and did it once, but did average on everything except math, I think I got a 19 (that has never been my strong suit) but I did fine, as long as you do the work book you will be ok. There is quite a bit of math 1st semester, that they go over with you in class, and you do have a math test you have to pass before each clinical that you have but they send you a study guide before hand so its not too bad!
Clinicals are really fun, you are at a variety of places throughout the 2 years. 1st semester you are only out for 4 days the whole semester (its more focused on getting book smart stuff) but you go to a nursing home and take health histories on patients. 2nd semester you go out every week, alternating the secondary care 2 days a week(med-surg units) with mental health 2 days a week(Via Christi's Good Shephard campus is where I went). Mental Health was REALLY fun even though I was scared to death, the people are really great. 3rd semester you have Tertiary care 2 days a week(I was in Hutchinson and we were on Med Surg, Orthopedics, and Telemetry, but they had Wichita hospitals too), You also have OB one day a week (you go to Wesley) and Pediatrics one day a week (either St. Francis or Wesley). Also, with OB and peds, you have half of the semester in "community" which for peds was with a school nurse, and OB is usually in a clinic, and the other half is in the hospital. 4th semester I have critical care at Wesley (ICU's) and Care of Populations (not sure what that one is exactly....should be fun!) Sometimes you will have Saturday clinicals for 12 hours (I did 3rd and again 4th semester). Not exactly what I wanted but, you have to do what you have to do. I love it so I can't complain.
Anyways, what I'm trying to say in all of that rambling is have fun and the biggest thing is you have to be willing to jump in and do things otherwise you won't learn anything! Yes, it is very nerve wracking the first time you do an IV(you won't do that until 2nd semester), or put in a catheter, but the nurse or instructor is there with you, and they are all really good. Yes you will mess up, everyone does. One big tip - get organized BEFORE HAND. It took me 2 semesters to get my "brain sheet" figured out - the thing you write everything down on, pt. name, room number, doctor, diagnosis, etc. but I'm picky so that could be just me...
Sorry I blabed so much - I knew NOTHING going in and really wish I had SOME clue so I want everyone to know everything! If you have any other questions just let me know!